#!/bin/bash

if [ -z ${CI+x} ]; then
    # Local build, not in CI, format source
    gofmt -s -w .
fi

VERSION="$(git describe --tags --dirty --always)"

BINARY="moar"
if [ -n "${GOOS}${GOARCH}" ]; then
    EXE=""
    if [ "${GOOS}" = "windows" ]; then
        EXE=".exe"
    fi
    BINARY="releases/${BINARY}-${VERSION}-${GOOS}-${GOARCH}${EXE}"
fi

# Linker flags version number trick below from here:
# https://www.reddit.com/r/golang/comments/4cpi2y/question_where_to_keep_the_version_number_of_a_go/d1kbap7?utm_source=share&utm_medium=web2x

# Linker flags -s and -w strips debug data, but keeps whatever is needed for
# proper panic backtraces, this makes binaries smaller:
# https://boyter.org/posts/trimming-golang-binary-fat/

# This line must be last in the script so that its return code
# propagates properly to its caller
go build -trimpath -ldflags="-s -w -X main.versionString=${VERSION}" -o "${BINARY}"

# Alternative build line, if you want to attach to the running process in the Go debugger:
# go build -ldflags="-X main.versionString=${VERSION}" -gcflags='-N -l' -o "${BINARY}"